Where is the pickup location at Shun Tak Centre (FERRY TERMINAL) shuttle bus to HK airport? and bus #?

Hi, AL.
After you get out of the ferry terminal, you can walk along the Connaught Road West to Rumsey Street, Connaught Road Central Station (This station is just next to Exit E5 of Sheung Wan MTR Station). At this station, you can take the bus line A11 to reach Airport (Ground Transportation Centre) directly.